Hiii , I have 3 questions . 1. How can we move in opposite direction of Earth's rotation despite of earth's high velocity ? Image1 :http://tinypic.com/view.php?pic=a2wyh3&s=7 2. Suppose we jump on the surface of earth , while earth is in rotation , then why we don't move backward or why we are not backward of the actual position in which we were standing before ? Image2 :http://tinypic.com/view.php?pic=119pb1d&s=7 3. Do these same reasons of above two questions apply in train also , while we are jumping in it or moving in its opposite direction ( In moving train ) ? If so or not so why ? Please don't go on the images . I made them in hurry . Thanks in advance . ( I am 14 years , class 10th ) Umm , atmosphere moves with the earth ? Why ? Due to gravity ? If yes then please explain that in detail .